Definition of ogdoad in English:

ogdoad

noun

rare
  • A group or set of eight.

Pronunciation

ogdoad

/ˈäɡdəˌwäd/ /ˈɑɡdəˌwɑd/

Origin

Early 17th century via late Latin from Greek ogdoas, ogdoad-, from ogdoos ‘eighth’, from oktō ‘eight’.